#include <stdio.h>

int max(int x,int y){if(x>y){return x;}return y;}
int min(int x,int y){if(x<y){return x;}return y;}

int main(void) {
	int i,n,a[1024],rmax=0,rmin=12345678;
	scanf("%d",&n);
	for(i = 1;i <= n;i++){
		scanf("%d",&a[i]);
		if(i == 1){continue;}
		rmax=max(rmax,a[i]-a[i-1]);
		rmin=min(rmin,a[i]-a[i-1]);
	}
	printf("%d\n%d\n",rmin,a[n]-a[1]);
	return 0;
}